| # Common capabilities |
| |
| This guide describes commonly used protocols that must be in a component's |
| sandbox services (for [components v1](/docs/glossary.md#components-v1)) or |
| capabilities (for [components v2](/docs/glossary.md#components-v2)). |
| |
| > See examples of capability configuration for [components v1][v1_example] or |
| [components v2][v2_example]. |
| |
| ## Networking |
| |
| Typical protocols used for components that require networking are |
| |
| * [`fuchsia.posix.socket.Provider`] for creating sockets (`socket`). |
| * [`fuchsia.net.NameLookup`] for resolving hostnames (`getaddrinfo`). |
| * [`fuchsia.device.NameProvider`] to get the device name (`uname`). |
| |
| POSIX sockets are provided by [libc] and [fdio] through `socket` calls which |
| require the [`fuchsia.posix.socket.Provider`] capability. |
| |
| Address resolution is similarly provided by [libc] through `getaddrinfo` which |
| requires the [`fuchsia.net.NameLookup`] capability. |
| |
| [`fuchsia.posix.socket.Provider`]: https://fuchsia.dev/reference/fidl/fuchsia.posix.socket#Provider |
| [`fuchsia.net.NameLookup`]: https://fuchsia.dev/reference/fidl/fuchsia.net#NameLookup |
| [`fuchsia.device.NameProvider`]: https://fuchsia.dev/reference/fidl/fuchsia.device#NameProvider |
| [libc]: /docs/concepts/system/libc.md |
| [fdio]: /docs/concepts/system/life_of_an_open.md |
| [v1_example]: /docs/concepts/storage/component_manifest.md |
| [v2_example]: /docs/concepts/components/capabilities/protocol.md#consuming_protocol_capabilities |
